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recessed tip spark plug options for big block #1565371
01/19/14 11:07 AM
01/19/14 11:07 AM
Joined: Jan 2003
Posts: 11,657
Fitchburg,Massachusetts
MPerry Offline OP
Mopahts memba'
MPerry  Offline OP
Mopahts memba'

Joined: Jan 2003
Posts: 11,657
Fitchburg,Massachusetts
I'm trying to find some recessed tip spark plugs so I can try some nitrous. I'm using 452 heads and all the ones I have come up with while searching are extended tip.

Re: recessed tip spark plug options for big block [Re: MPerry] #1565372
01/19/14 01:06 PM
01/19/14 01:06 PM
Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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MoparBilly Offline
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MoparBilly  Offline
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Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
In the .375 reach, not as many choices out there. I run NGK almost exclusively these days. Their race plugs, while considered extended tip, aren't nearly as far out there as others.

In my beater motor home 440 with 185 hp hit, I had no problems, and drove it on the street.

From Hot to cold
R-5670-6 2746
R-5670-7 2891
R-5670-8 3354
R-5670-9 3913


"Livin' in a powder keg and givin' off sparks" 4 Street cars, 5 Race engines
Re: recessed tip spark plug options for big block [Re: MoparBilly] #1565373
01/19/14 03:10 PM
01/19/14 03:10 PM
Joined: Jan 2003
Posts: 11,657
Fitchburg,Massachusetts
MPerry Offline OP
Mopahts memba'
MPerry  Offline OP
Mopahts memba'

Joined: Jan 2003
Posts: 11,657
Fitchburg,Massachusetts
Thanks Billy. I guess that explains why I've had so much difficulty finding some. Currently have plate jetting set for 100hp but will eventually plan to work up to 200.







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